Cock.



. I. A. ZWIEBEL.

COCK.

APPLICATION FILED APR. 20. 1916.

1,204,532; Pa1e11IedN0v.14,1916.

e ymmwm Cai JOSEPH A. ZWIEBEL, OF BURLINGTON, W'ISCONSIN, ASSIGNOR TO BURLINGTON BRASS WORKS, OF BURLINGTON, WISCONSIN, A CORPORATION OFvWISCONSIN.

COCK.

Application filed April 20, 1916.

To all whom t may concern Be it known that I, JOSEPH A. ZwiiinL, a citizen of the United States, residing at Burlington, in the county of Racine and State of lVisconsin, have invented certain new and useful Improvements in Cocks, of which the following is a specification, reference being had to the accompanying drawing, forming a part thereof.

This invention relates more particularly to the construction of cocks or valves for use in connection with milk and other fluids where cleanliness is of prime importance.

rEhe main objects of the invention are to facilitate removing the valve plug from and replacing it in the case, to afford easy access to internal parts of the cock for the purpose of thoroughly cleansing and keeping the same in a sanitary condition; toprovide for tightening and loosening the plug in the case for taking up play and preventing leakage and for permitting free movement and removal of the plug; and generally to improve the construction and operation of cocks or valves ofthis class.

It consists in the construction, arrangement and combination of parts as hereinafter particularly*described and pointed out in the claims.

In the accompanying drawing, like characters designate the same parts in both figures.

Figure 1 is an axial section on the line 1 1, Fig. 2, of a cock embodying the invention; and Fig. 2 is a side elevation o f the cock, the plug of the cock being shown in its closed position in both gures.

The cock as shown by the drawing is specially designed for drawing olf milk from vats or tanks, but with little or no change,

is suitable for other purposes, especially where cleanly and sanitary conditions are important.

The device comprises a case or body a, preferably made of iion-corrosive metal or alloy, and having a tapering bore open .at the ends, and a peripheral flange o, adjacent the larger end of the bore, as shown in Fig. 1. flanged necks c, having passages preferably in alinement with each other and intersect-l ing the tapering bore on diametrically opposite sides thereof, as shown in Fig. 2, the flanges serving as coupling members for connecting the cock on one or both sides Speccatonof Letters Patent.

rwith correspondingly flanged pipes.

The case is also formed withy Patented Nov. 1.4i, 1916.

Serial No. 92,341.

A tapering plug d, preferably inaole like the case, of a non-corrosive metal or alloy, is removably fitted in the tapering bore of the case and is formed, as shown in Fig. 1, with a transverse passage or opening e corresponding in size and shape with the passages in the necks c and adapted to register there- `with and connect the same, forming a con tinuous passage through the cock, when the plug is turned in the case into a position at right angles from that in which it is shown in Fig. 2.

The plug is provided with an operating handle or arm f, which may be attached to its larger end in any convenient manner, but preferably as follows: rJlhe plug l is formed, as shown by the drawing, with a central square boss or projection g at its larger end, on which is removably fitted a square opening in one end of the handle or arm 7, which is fastened in place by a flanged cap or screw 7L, threaded in a central hole in said boss orv projection, 'and formed with a polygonal wrench head. The circular flange of the cap or screw overlianging the outer end of the square boss or projection engages vwith the upper or outer' side of the handle or arm 7" around the square opening therein, and rigidly conlines the handle or arm on said boss or projection.

To save metal and make the cock lighter, the larger end of the plug may be cored, as shown in Fig. 1.

A hook or lug i, notched or fitted to engage and work with the flange b on the lcase a, has a squared or flattened shank y',

fitted in a hole through the handle or arm f, parallel with the aXis of the plug d. A wing nut 7c threaded on the reduced end of the shank y', secures the hook or lug c' to the handle or arm f, and to the plug el, and serves to adjust the plug axially in the case or to tighten and loosen the same therein, for taking up wear or play and preventing leakage, also for locking the plug in any desired position, or for loosening and permitting its free movement therein and itsV removal therefrom.

The plug d may be detached and withdrawn axially from the case a by removing the nut lc from the threaded shank of the hook or lug c', but to facilitate the removal of the plug, the flange b is formed as shown which it is shown in Fig. 2, Ycounterclockwise to the position indicated by the dotted line m, in which position the hook or lug 'el is Vdirectly opposite the notch Z and may beinstantly withdrawn with the handle and plug from the case. lVhen the plug is thus removed from the case, it as well as the case and its connections, can be easily and thoroughtly cleansed. 'Ihe plug is replaced in the case by a reversal of the operations above mentioned, the nut 7s being tightened to take up play between the plug CZ and case a, to produce a workingfit between them, or lockthe plug inany desired position.

In the normal movement of the plug CZ and its operating handle fthrough an arc of ninety degrees, for opening and closing -the cock, the hook or lug z' is not brought into register with the notch Z, thereby accidentally releasing the plug and permitting its axial displacement in the case.

As shown in Fig. 2, the cock is opened by turning the handle f clockwise downward into a vertical position, and is closed by turning itback to the horizontal position in which itis shown. n

Various modifications in minor details Vof construction and arrangement of parts may be made without departing from the principle andscope of the invention as defined in the following claims, as, for example, the necks c of the case or body @may be threaded or provided with other coupling means for connecting it with a vat, tank or the like, or with one or more pipe sections.

I claim: Y. V

1. In a cock the combination of a case having a tapered bore open at the ends and a peripheral iiange notched adj a-cent the larger v end of the bore, a tapered plug removably fitted in said bore, and afhook detachably adjustably connected with the plug Vand Y adapted by engagement with said ,flange to confine the plug in the case. Y 2. In a cock the combination of a case having a tapered bore open at the ends and a Yend of the bore, a tapered plug removably fitted in said bore, and a hook connected with the plug and Y'adapted by engagement with the flange to hold the plug in place in the case within the range of movement normal for opening and closing the cock, but when turned into normal position opposite the notch in the flange to permit instant removal of the plug from the case in its normal open and closed positions and by its adjustment tov take up wear and play between the plug and case.

3. In a cock the combination of a case having a tapered bore open at the ends and a peripheral flange adjacent the larger end of the bore, a tapered 'plug removably fitted in said bore, and a hook connected with said plug and adapted by engagement with said Vflange to hold the plug in place in the case,

the hook being adjustable axially relative to Vthe plug and Vadapted to take up play bethe plug in place in the case within the range of movement for opening and closing the cock,'but when turned' into abnormal position opposite the notch in the flange to permit instant removal of the plug from the case, the adjustment ofthe hook relative to the plug serving to tighten or loosen the plug in the case. Y Y 5. 'In a cock the combination Vof a case havingl a tapered bore open at the ends and a peripheral ange adjacent the larger end of the bore, a tapered plug removably fitted in said bore and provided at the-larger end with a handle arm, afhook adapted to engage with said flange to hold the plug in place in the case and having aY threaded shank fitted in a vhole in the handle arm parallel with the axis-of the plug and provided with a nut for taking up play between Ythe plug andcase.

In witness whereof I' hereunto affiXrmy signature in presence of two witnesses.

JOSEPH A.' ZWIEBEL. Zitnesses FRANK A. GEEK, SIMON J. MADDEN.

Copies of` this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

